Crunchbase 2013 Snapshot

Retrieval

The data was retrieved by Shrey and Matthew - STATE HOW AND FROM WHERE

Content

The snapshot contained 2 .tar.qz files

• • which were extracted into 181/crunchbase using the command

tar -zxvf file.tar.gz

The files (size in bytes) and their contents are

crunchbase_2013_snapshot_mysql.tar.gz

• license.txt 526
• cb_objects.sql 338955612
• cb_offices.sql 14850092
• cb_people.sql 13253952
• cb_ipos.sql 178397
• cb_milestones.sql 10498840
• cb_funds.sql 385010
• cb_relationships.sql 48655529
• cb_degrees.sql 13829471
• cb_investments.sql 6185134
• cb_acquisitions.sql 2309393
• cb_funding_rounds.sql 14681705

odm.csv.tar.gz

• organizations.csv 212013301
  • 459916 records with the following fields:
    • crunchbase_uuid
    • type
    • primary_role
    • name
    • crunchbase_url
    • homepage_domain
    • homepage_url
    • profile_image_url
    • facebook_url
    • twitter_url
    • linkedin_url
    • stock_symbol
    • location_city
    • location_region
    • location_country_code
    • short_description
• people.csv 188924229
  • 521634 records with the following fields:
    • crunchbase_uuid
    • type
    • first_name
    • last_name
    • crunchbase_url
    • profile_image_url
    • facebook_url
    • twitter_url
    • linkedin_url
    • location_city
    • location_region
    • location_country_code
    • title
    • organization
    • organization_crunchbase_url
• crunchbase_license.txt 487

Changing MYSQL to PostgreSQL

The SQL files were generated in MySQL. We need to convert them to PostgreSQL. See: https://en.wikibooks.org/wiki/Converting_MySQL_to_PostgreSQL and http://stackoverflow.com/questions/1942586/comparison-of-database-column-types-in-mysql-postgresql-and-sqlite-cross-map

The key changes are:

MYSQL          POSTGRESQL
-----          ----------
LOCK           --comment out as no need but LOCK [ TABLE ] [ ONLY ] name [ * ] [, ...] [ IN lockmode MODE ] [ NOWAIT ]
UNLOCK         --comment out
decimal(x,y)   real (might work as is)
datetime       timestamp
KEY            --comment out as no need but FOREIGN KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ... ] ) ]